CW OPERATION OF MONOLITHIC ARRAYS OF SURFACE-EMITTING FOLDED-CAVITY INGAAS/ALGAAS DIODE-LASERS

被引：12

作者：

DONNELLY, JP

GOODHUE, WD

WANG, CA

BAILEY, RJ

LINCOLN, GA

JOHNSON, GD

MISSAGGIA, LJ

WALPOLE, JN

机构：

[1] Lincoln Laboratory, Massachusetts Institute of Technology, Lexington

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1993年 / 5卷 / 07期

关键词：

D O I：

10.1109/68.229793

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A monolithic 0.84-cm2 two-dimensional array of surface-emitting folded-cavity InGaAs/AlGaAs diode lasers was mounted junction up on a W/Cu microchannel heatsink and evaluated under CW operating conditions. Each laser in the array contained two upward-deflecting internal-cavity 45-degrees mirrors, which were etched using chlorine ion-beam-assisted etching, and two top-surface facets. The CW threshold current densities of different sections of the array were less-than-or-equal-to 223 A/cm2, while effective CW differential quantum efficiencies were greater-than-or-equal-to 30%. A CW output power of over 40 W was obtained from the entire array, while a current-limited output power density of 84 W/cm2 with an average temperature rise of approximately 30-degrees-C was obtained from a quarter of the array.

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页码：747 / 750

页数：4

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